Powered Up Balloons8103E3A8 2400
Note: Once you powerup a weapon/turbo, the next time you get a balloon it keeps the same level of powerup.

Powered Up Balloons v28103E37C 2400
8103E38C 2400
Note: Getting a balloon will automatically start you with a powered up version of it, and you keep the same level of powerup (or greater) after use/pickup of another.

Infinite Item Usage8108C940 2400
Note: Tested with ammo in the character's inventory screen (third slot). After reloading the gun, instead of the ammo box disappearing from inventory, you gained lots more. Do NOT use with the code "Use Items Without Having Them".

Item Amount Doesn't Decrease After Combining8108E968 2400
Note: Tested with Hand Gun Bullets in slot 3 and in slot 4, combined with the handgun (in slot 1); works on both characters.

Leon Can Open Desks Without The Small Key810746F8 2400

One Hit Kills8105B2F4 2400
Note: Sometimes zombies play dead on the ground still, and will need another shot.

Use Items Without Having Them*
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Note: You can save without having Ink Ribbons, open doors without keys etc. Basically affects all items that needs to be in your inventory.

Items that it does not affect are ones that you have to manually click on "use" in the inventory screen, such as film or the 'cord' item to fix the broken electric panel to close the window shutters.
More examples of items the code will not work for (because you have to manually select USE): Valve Handle, Lighter etc.

Examples of items that the code works for: Key Card, Prescient Key, special key etc.

*BUT - There is something to be careful for: Like when you start a new game, you get the key card from the dying police officer, then you use that item on the computer to unlock the doors.

After you use the item it is gone from your inventory.
Well, if you use this code, and access the computer without actually having the key card yet, the game does what it always does and removes an item from your inventory.

Human Smoke & Khameleon Accessable On Character Select Menu81006A10 2400
81007F3C 2400
81007F60 1000
Note: While on the character select menu, it will show you as the last character you highlighted before selecting either Human Smoke or Khameleon.